In the following question, select the odd word from the given alternatives.

Step-by-step solution

The four options are: - (a) Lemon: A fruit that grows above ground. - (b) Carrot: A root vegetable that grows underground. - (c) Beetroot: A root vegetable (specifically a taproot) that grows underground. - (d) Turnip: A root vegetable (a type of taproot) that grows underground. Carrot, Beetroot, and Turnip are all root vegetables that primarily grow beneath the soil. Lemon is a fruit that grows on a tree above the soil. Therefore, Lemon is the odd one out based on its botanical classification and growing location.